[Bug]: Random notifications from shared calendar about changed event, when it was never changed

shalak commented 1 year ago

⚠️ This issue respects the following points: ⚠️

[X] This is a bug, not a question or a configuration/webserver/proxy issue.
[X] This issue is not already reported on Github OR Nextcloud Community Forum (I've searched it).
[X] Nextcloud Server is up to date. See Maintenance and Release Schedule for supported versions.
[X] I agree to follow Nextcloud's Code of Conduct.

Bug description

I'm currently running NC 26.0.2 via nextcloud-aio with Calendar 4.4.1 and Notifications 2.14.0.

On this instance I have the 2 accounts - mine & my wife's (there's also a separate admin account).

I created a calendar and shared it with my wife. I connected my account to Android and MacOS. My wife only connects to Android. We both have enabled email notifications about calendar (all boxes related to calendar checked in the notifications settings)

Here's the problem: my wife randomly receives email notifications, every day or two with _Husband updated event AN_EVENT in calendar SHAREDCALENDAR. The problem is that I never update those events, and the notification doesn't show what exactly has been updated, so it's really hard to pinpoint what's going wrong.

This has been happening ever since I enabled the email notifications for her, spanning through several updates since then

Steps to reproduce

Create calendar on account A
Share it with account B
Hookup account A to Android and MacOS
Hookup account B to Android
Enable email notifications for all changes in calendar on both accounts
Observe account B getting email notifications about changes done by account A, that were never done

Expected behavior

Only valid notifications are delivered

Installation method

Official All-in-One appliance

Nextcloud Server version

26

Operating system

Debian/Ubuntu

PHP engine version

None

Web server

None

Database engine version

None

Is this bug present after an update or on a fresh install?

None

Are you using the Nextcloud Server Encryption module?

None

What user-backends are you using?

[X] Default user-backend (database)
[ ] LDAP/ Active Directory
[ ] SSO - SAML
[ ] Other

Configuration report

{
    "system": {
        "memcache.local": "\\OC\\Memcache\\APCu",
        "apps_paths": [
            {
                "path": "\/var\/www\/html\/apps",
                "url": "\/apps",
                "writable": false
            },
            {
                "path": "\/var\/www\/html\/custom_apps",
                "url": "\/custom_apps",
                "writable": true
            }
        ],
        "memcache.distributed": "\\OC\\Memcache\\Redis",
        "memcache.locking": "\\OC\\Memcache\\Redis",
        "redis": {
            "host": "***REMOVED SENSITIVE VALUE***",
            "password": "***REMOVED SENSITIVE VALUE***",
            "port": 6379
        },
        "overwritehost": "**REMOVED SENSITIVE VALUE***",
        "overwriteprotocol": "https",
        "passwordsalt": "***REMOVED SENSITIVE VALUE***",
        "secret": "***REMOVED SENSITIVE VALUE***",
        "trusted_domains": [
            "localhost",
            "**REMOVED SENSITIVE VALUE***",
            "**REMOVED SENSITIVE VALUE***"
        ],
        "datadirectory": "***REMOVED SENSITIVE VALUE***",
        "dbtype": "pgsql",
        "version": "26.0.2.1",
        "overwrite.cli.url": "https:\/\/**REMOVED SENSITIVE VALUE***\/",
        "dbname": "***REMOVED SENSITIVE VALUE***",
        "dbhost": "***REMOVED SENSITIVE VALUE***",
        "dbport": "",
        "dbtableprefix": "oc_",
        "dbuser": "***REMOVED SENSITIVE VALUE***",
        "dbpassword": "***REMOVED SENSITIVE VALUE***",
        "installed": true,
        "instanceid": "***REMOVED SENSITIVE VALUE***",
        "loglevel": "2",
        "log_type": "file",
        "logfile": "\/var\/www\/html\/data\/nextcloud.log",
        "log_rotate_size": "10485760",
        "log.condition": {
            "apps": [
                "admin_audit"
            ]
        },
        "preview_max_x": "2048",
        "preview_max_y": "2048",
        "jpeg_quality": "60",
        "enabledPreviewProviders": {
            "1": "OC\\Preview\\Image",
            "2": "OC\\Preview\\MarkDown",
            "3": "OC\\Preview\\MP3",
            "4": "OC\\Preview\\TXT",
            "5": "OC\\Preview\\OpenDocument",
            "6": "OC\\Preview\\Movie",
            "0": "OC\\Preview\\Imaginary"
        },
        "enable_previews": true,
        "upgrade.disable-web": true,
        "mail_smtpmode": "smtp",
        "trashbin_retention_obligation": "auto, 30",
        "versions_retention_obligation": "auto, 30",
        "activity_expire_days": "30",
        "simpleSignUpLink.shown": false,
        "share_folder": "\/Shared",
        "tempdirectory": "\/mnt\/ncdata\/tmp\/",
        "one-click-instance": true,
        "one-click-instance.user-limit": 100,
        "one-click-instance.link": "https:\/\/nextcloud.com\/all-in-one\/",
        "htaccess.RewriteBase": "\/",
        "files_external_allow_create_new_local": false,
        "trusted_proxies": "***REMOVED SENSITIVE VALUE***",
        "allow_local_remote_servers": true,
        "mail_smtpsecure": "tls",
        "mail_sendmailmode": "smtp",
        "mail_from_address": "***REMOVED SENSITIVE VALUE***",
        "mail_domain": "***REMOVED SENSITIVE VALUE***",
        "mail_smtpauthtype": "LOGIN",
        "mail_smtpauth": 1,
        "mail_smtphost": "***REMOVED SENSITIVE VALUE***",
        "mail_smtpport": "587",
        "mail_smtpname": "***REMOVED SENSITIVE VALUE***",
        "mail_smtppassword": "***REMOVED SENSITIVE VALUE***",
        "default_phone_region": "PL",
        "preview_imaginary_url": "http:\/\/nextcloud-aio-imaginary:9000",
        "maintenance": false,
        "updatedirectory": "\/nc-updater",
        "memories.exiftool": "\/var\/www\/html\/custom_apps\/memories\/exiftool-bin\/exiftool-amd64-musl",
        "memories.vod.path": "\/var\/www\/html\/custom_apps\/memories\/exiftool-bin\/go-vod-amd64",
        "memories.vod.ffmpeg": "\/usr\/bin\/ffmpeg",
        "memories.vod.ffprobe": "\/usr\/bin\/ffprobe",
        "memories.gis_type": 2
    }
}

List of activated Apps

Enabled:
  - activity: 2.18.0
  - admin_audit: 1.16.0
  - bruteforcesettings: 2.6.0
  - calendar: 4.4.1
  - circles: 26.0.0
  - cloud_federation_api: 1.9.0
  - comments: 1.16.0
  - contacts: 5.3.0
  - contactsinteraction: 1.7.0
  - dashboard: 7.6.0
  - dav: 1.25.0
  - deck: 1.9.2
  - federatedfilesharing: 1.16.0
  - federation: 1.16.0
  - files: 1.21.1
  - files_antivirus: 5.1.0
  - files_fulltextsearch: 26.0.0
  - files_pdfviewer: 2.7.0
  - files_rightclick: 1.5.0
  - files_sharing: 1.18.0
  - files_trashbin: 1.16.0
  - files_versions: 1.19.1
  - firstrunwizard: 2.15.0
  - fulltextsearch: 26.0.0
  - fulltextsearch_elasticsearch: 26.0.0
  - integration_google: 2.0.2
  - logreader: 2.11.0
  - lookup_server_connector: 1.14.0
  - memories: 5.1.0
  - nextcloud-aio: 0.4.0
  - nextcloud_announcements: 1.15.0
  - notes: 4.7.2
  - notifications: 2.14.0
  - notify_push: 0.6.3
  - oauth2: 1.14.0
  - password_policy: 1.16.0
  - photos: 2.2.0
  - privacy: 1.10.0
  - provisioning_api: 1.16.0
  - recognize: 4.1.0
  - recommendations: 1.5.0
  - related_resources: 1.1.0-alpha1
  - richdocuments: 8.0.2
  - serverinfo: 1.16.0
  - settings: 1.8.0
  - sharebymail: 1.16.0
  - spreed: 16.0.4
  - support: 1.9.0
  - survey_client: 1.14.0
  - systemtags: 1.16.0
  - tasks: 0.15.0
  - text: 3.7.2
  - theming: 2.1.1
  - twofactor_backupcodes: 1.15.0
  - twofactor_totp: 8.0.0
  - user_status: 1.6.0
  - viewer: 1.10.0
  - weather_status: 1.6.0
  - workflowengine: 2.8.0
Disabled:
  - encryption: 2.14.0
  - event_update_notification: 2.2.0 (installed 2.2.0)
  - files_external: 1.18.0
  - news: 21.2.0 (installed 21.2.0)
  - suspicious_login: 4.4.0 (installed 4.3.0)
  - user_ldap: 1.16.0

Nextcloud Signing status

No errors have been found.

Nextcloud Logs

No response

Additional info

No response

ChristophWurst commented 10 months ago

never update those events

Do these events have alarm/reminders set? If your client, e.g. Thunderbird. marks the alarm as dismissed, the event is modified.

shalak commented 10 months ago

Do these events have alarm/reminders set? If your client, e.g. Thunderbird. marks the alarm as dismissed, the event is modified.

That's possible, but I'm not 100% sure. Is there a way to log the exact event modification that is happening?

ChristophWurst commented 10 months ago

That is not possible in Nextcloud right now. You could try to locate the event in the database (somewhere in oc_calendarobjects) and find the previous version from a database snapshot.

nextcloud / server